A library that provides an embeddable, persistent key-value store for fast storage.
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Akanksha Mahajan 8ed680bdb0 Add new API to report dummy entries size in cache in WriteBufferManager (#7837)
Summary:
Add new API WriteBufferManager::dummy_entries_in_cache_usage() which reports the dummy entries size stored in cache to account for DataBlocks in WriteBufferManager.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7837

Test Plan: Updated test ./write_buffer_manager_test

Reviewed By: ajkr

Differential Revision: D25794312

Pulled By: akankshamahajan15

fbshipit-source-id: 197f5e8701e3dc57a7df72dab1735624f90daf4b
2021-01-08 13:26:24 -08:00
.circleci Store test logs as artifacts if the build fails in CircleCI (#7812) 2021-01-07 17:13:19 -08:00
.github/workflows Update clang-format-diff.py (#7609) 2020-11-04 16:09:01 -08:00
buckifier Fix use of positional args in BUCK rules (#7760) 2020-12-09 19:25:31 -08:00
build_tools Migrate away from Travis+Linux+amd64 (#7791) 2020-12-22 00:20:57 -08:00
cache Fix typos in comments (#7687) 2020-11-19 13:32:50 -08:00
cmake Add find_dependency() in cmake config file. (#6791) 2020-05-12 21:18:29 -07:00
coverage Find the correct gcov (#6904) 2020-06-01 16:33:05 -07:00
db Treat File Scope Write IO Error the same as Retryable IO Error (#7840) 2021-01-07 16:31:33 -08:00
db_stress_tool Increase the txn lock timeout in stress test (#7823) 2020-12-30 20:31:35 -08:00
docs Update github-pages to v207 (#7235) 2020-08-12 09:26:24 -07:00
env Create a CustomEnv class; Add WinFileSystem; Make LegacyFileSystemWrapper private (#7703) 2021-01-06 10:49:32 -08:00
examples Bring the Configurable options together (#5753) 2020-09-14 17:01:01 -07:00
file Add more tests to the ASC pass list (#7834) 2021-01-07 15:22:53 -08:00
fuzz Update SstFileWriter fuzzer to iterate and check all key-value pairs (#7761) 2020-12-11 16:09:10 -08:00
hdfs fix build with 'USE_HDFS' on windows (#6950) 2020-06-12 16:21:50 -07:00
include/rocksdb Add new API to report dummy entries size in cache in WriteBufferManager (#7837) 2021-01-08 13:26:24 -08:00
java Fix various small build issues, Java API naming (#7776) 2020-12-18 16:12:26 -08:00
logging No elide constructors (#7798) 2020-12-23 16:55:53 -08:00
memory slightly improve jemalloc allocator API header (#7592) 2020-10-28 13:47:12 -07:00
memtable Add new API to report dummy entries size in cache in WriteBufferManager (#7837) 2021-01-08 13:26:24 -08:00
monitoring Use mock time for histogram_test (#7799) 2021-01-04 13:12:40 -08:00
options Make StringEnv, StringSink, StringSource use FS classes (#7786) 2021-01-04 16:01:01 -08:00
port Create a CustomEnv class; Add WinFileSystem; Make LegacyFileSystemWrapper private (#7703) 2021-01-06 10:49:32 -08:00
table Add more tests to ASSERT_STATUS_CHECKED (3), API change (#7715) 2021-01-06 14:15:02 -08:00
test_util Create a CustomEnv class; Add WinFileSystem; Make LegacyFileSystemWrapper private (#7703) 2021-01-06 10:49:32 -08:00
third-party Fix Compilation on ppc64le using Clang 11 (#7713) 2020-12-01 11:21:44 -08:00
tools Add more tests to ASSERT_STATUS_CHECKED (3), API change (#7715) 2021-01-06 14:15:02 -08:00
trace_replay Add tests in ASSERT_STATUS_CHECKED (#7793) 2020-12-22 10:31:13 -08:00
util Make StringEnv, StringSink, StringSource use FS classes (#7786) 2021-01-04 16:01:01 -08:00
utilities Get manifest size again after getting min_log_num during checkpoint (#7836) 2021-01-07 23:02:55 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Fuzzing RocksDB (#7685) 2020-11-17 12:56:48 -08:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Migrate away from Travis+Linux+amd64 (#7791) 2020-12-22 00:20:57 -08:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml Remove 2019 from appveyor (#7038) 2020-06-29 14:31:41 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Range Locking: Implementation of range locking (#7506) 2020-12-22 19:12:36 -08:00
CODE_OF_CONDUCT.md Adopt Contributor Covenant 2019-08-29 23:21:01 -07:00
CONTRIBUTING.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
COPYING Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
DEFAULT_OPTIONS_HISTORY.md options.delayed_write_rate use the rate of rate_limiter by default. 2017-05-24 09:58:24 -07:00
defs.bzl Make testpilot recognize that these tests have coverage instrumentation 2020-03-20 11:23:23 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Add new API to report dummy entries size in cache in WriteBufferManager (#7837) 2021-01-08 13:26:24 -08:00
INSTALL.md Update the version of the dependencies used by the RocksJava static build (#4761) 2018-12-18 20:25:43 -08:00
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
LANGUAGE-BINDINGS.md Add RestoreDBFromLatestBackup to C API, add new C# package (#7092) 2020-07-08 11:56:41 -07:00
LICENSE.Apache Change RocksDB License 2017-07-15 16:11:23 -07:00
LICENSE.leveldb Add back the LevelDB license file 2017-07-16 18:42:18 -07:00
Makefile Add more tests to the ASC pass list (#7834) 2021-01-07 15:22:53 -08:00
README.md Fix the CI badge for ppc64le Jenkins (#7561) 2020-10-16 09:00:56 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Range Locking: Implementation of range locking (#7506) 2020-12-22 19:12:36 -08:00
TARGETS Range Locking: Implementation of range locking (#7506) 2020-12-22 19:12:36 -08:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md add ArangoDB to USERS.md, and fix typos in that file (#7675) 2020-11-16 18:29:51 -08:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md #5145 , rename port/dirent.h to port/port_dirent.h to avoid compile err when use port dir as header dir output (#5152) 2019-04-04 11:38:19 -07:00

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

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RocksDB is developed and maintained by Facebook Database Engineering Team. It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com) and Jeff Dean (jeff@google.com)

This code is a library that forms the core building block for a fast key-value server, especially suited for storing data on flash drives. It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF) and Space-Amplification-Factor (SAF). It has multi-threaded compactions, making it especially suitable for storing multiple terabytes of data in a single database.

Start with example usage here: https://github.com/facebook/rocksdb/tree/master/examples

See the github wiki for more explanation.

The public interface is in include/. Callers should not include or rely on the details of any other header files in this package. Those internal APIs may be changed without warning.

Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/ and https://rocksdb.slack.com/

License

RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.